Irving’s Darling Ingredients To Capture Biogas at Wastewater Plants for Conversion to Natural Gas

Darling—a global leader in turning food waste into sustainable products and a producer of renewable energy—is partnering with GreenGasUSA in the conversion plan.

Irving-based Darling Ingredients Inc. said it plans to reduce emissions from the wastewater treatment plants at some of its rendering facilities by capturing biogas and converting it to renewable natural gas (RNG).

Darling—a global leader in turning food waste into sustainable products and a producer of renewable energy—is partnering with Charleston, South Carolina-based GreenGasUSA in the conversion plan.

“Darling continues to find value where others see waste,” Chairman and CEO Randall C. Stuewe said in a statement. “By combining our deep knowledge of RNG from our position in Europe with the capabilities of GreenGas in the U.S., Darling can significantly decrease its greenhouse gas emissions and help develop a successful RNG business in the U.S.”

The company said its initial plan is to start with five Darling Ingredients plants in the U.S. with the opportunity to expand to other facilities, depending on feasibility and market conditions.

“We’re excited to announce this landmark agreement with Darling Ingredients. It’s our mission at GreenGas to help businesses reduce their environmental impact by providing solutions that generate economic benefits,” CEO and founder of GreenGas USA Marc Fetten said in a statement. “Darling Ingredients has been at the forefront of the effort to repurpose waste and integrate circularity into industrial operations and GreenGas is proud to support this mandate by partnering to convert agricultural and food waste into a valuable renewable energy product.”

The term circularity refers to a product, service, or resource that is renewed or regenerated, rather than wasted.

A pioneer in circularity, Darling Ingredients said it takes material from the animal agriculture and food industries and transforms them into “valuable ingredients that nourish people, feed animals and crops, and fuel the world with renewable energy.”

Darling operates more than 260 facilities in more than 15 countries and processes about 15% of the world’s animal agricultural by-products, produces about 30% of the world’s collagen (both gelatin and hydrolyzed collagen), and is one of the largest producers of renewable energy.

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